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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-02-28 17:00:05 +0300 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2024-03-19 18:11:42 +0300 |
| commit | b37cafacbf98ead69c2ecb220fb82b06aee916b9 (patch) | |
| tree | 9b28e2116abdb9092dbb21fa13b1f917b9cbb3b2 /include/linux/printk.h | |
| parent | 0381e588949380704005dacdbef6e9a2920260df (diff) | |
| download | linux-b37cafacbf98ead69c2ecb220fb82b06aee916b9.tar.xz | |
ceph: Use no_printk() helper
When printk-indexing is enabled, each printk() invocation emits a
pi_entry structure. This is even true when the call is protected by an
always-false check: while the actual code to print the message is
optimized out by the compiler, the pi_entry structure is still emitted.
Fix this by replacing "if (0) printk(...)" constructs by calls to the
no_printk() helper.
This reduces the size of an arm64 kernel with CONFIG_PRINTK_INDEX=y and
CONFIG_CEPH_FS=y by ca. 4 KiB.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Chris Down <chris@chrisdown.name>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/a21767eccb823435a7f18cdf115d7d572b4e945d.1709127473.git.geert+renesas@glider.be
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'include/linux/printk.h')
0 files changed, 0 insertions, 0 deletions